Founded in 1974 by former B.F. Goodrich rubber-industry engineer Edward J. Bittle, Seal Master Corporation in Kent, Ohio, designs and manufactures custom fabric-reinforced inflatable seals and bags for demanding applications. Its fully molded, American-made products are engineered with customers for mission-critical environments, and the company says it has created more than 8,500 custom rubber products over nearly five decades. Every product is inspected at least twice and undergoes mandatory underwater leak testing before shipment.
Better Business Bureau A+ Accredited Business
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FDA-Approved Materials
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Class VI Certified Materials
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Sur-SealFounded in Cincinnati in 1965 as a family-owned business, Sur-Seal manufactures engineered components that solve sealing, insulation, thermal-management and protection challenges. Its custom-converting work ranges from precision gaskets to molded and extruded parts, supported by engineering services and a manufacturing network that now spans the United States, Mexico and China. Sur-Seal’s history includes making gaskets for the Apollo missions, while its combined operations now encompass more than 400,000 square feet and over 500 employees.CINCINNATI, OH
Reliable Hermetic SealsReliable Hermetic Seals is a Beavercreek, Ohio-based LLC known for building custom hermetic seals around unusual customer requirements. Its engineering team supports prototypes through production orders for applications ranging from research laboratories to aerospace, while every seal receives visual, electrical, and leak inspection before shipment.BEAVERCREEK, OH
Mantaline CorporationSince its founding in 1964, Mantaline Corporation has built its identity around engineering-driven manufacturing from its headquarters in Mantua, Ohio. The company develops customized elastomeric sealing systems for customers in transportation, construction, and industrial markets, with operations across North America and Mexico. Its quality and environmental systems are registered to ISO 9001:2015, IATF 16949:2016, and ISO 14001:2015.MANTUA, OH
System SealsFounded in Cleveland in 1995 by engineer Arnold von Engelbrechten, System Seals designs and manufactures custom high-performance sealing systems for equipment where failure is not an option. Its engineers use proprietary modeling tools to tailor seals to exact operating conditions, supporting OEMs and operators in demanding wind-energy, oil-and-gas, and heavy-industrial applications. The company now has more than 160 people across North America and Europe and serves customers in over 40 countries.CLEVELAND, OH